Tools Menu : Added item to populate the Arnold GPU cache, which may improve startup times for GPU renders.
Viewer : Tool hotkeys now work as toggles for non-exclusive tools. This is currently noticeable on the Camera Tool - pressing T again will deactivate it.
ArnoldShader and ArnoldLight : Added activators and sections to the UI.
ImageWriter : Options are only displayed for the file format being written. If the extension is unknown, all format options are shown.
Light Editor : Added keyboard shortcuts for selected light.
Alt+E : Edit source node.
Shift+Alt+E : Edit tweaks node.
Edit Menu : Added item to rename one or more selected nodes, with accompanying keyboard shortcut (#4286).
Box : Rename plug dialogue now ensures names are valid as they are typed.
ArnoldMeshLight : Fixed illumination from textured mesh lights. This was broken in 0.61.2.0.
ArnoldShader : Added support for
PlugLayout : User interface sections are now hidden if all plugs in that section are hidden.